Address is the LAN address of the circuit named in the
    circuit argument. This argument is required for LAN circuits.

    loop  [node node-id] mop circuit circuit-name -
          address lan-address [,optional arguments...]

    If an Address is not supplied in the command on a LAN circuit,
    then the Client argument must be specified so the address
    information can be obtained from the MOP Client database.

    loop  [node node-id] mop circuit circuit-name -
          client client-name [,optional arguments...]

    Optional arguments for this loop mop circuit command are:
    Assistance Type, Assistant Address, Assistant System, Count,
    Format, and Length.